文中建立了带翼锥体弹头章动数学模型,分析了章动参数对目标姿态角的影响,推导了带翼弹头固定型和滑动型点散射中心的章动微多普勒理论公式,并对其进行了时频分析。基于电磁计算软件获取的目标静态电磁散射数据,结合目标运动模型合成了带翼弹头的雷达动态回波,进而获得其章动微多普勒的电磁仿真结果,验证了章动微多普勒理论公式的正确性,并给出了重要结论。

The mathematical model of nutation for a cone-shaped warhead with wings is established, and the effects of nutation parameters on attitude angles are analyzed. The theoretic micro-Doppler formulas of fixed-type and sliding-type point scatters for the warhead with wings are derived, and they are simulated through time-frequency technique. Based on the static electromagnetic scattering data acquired by an electromagnetic computing software, combining with the target's moving model, the radar dynamic echo of the warhead with wings is synthesized, then the electromagnetic simulation results of nutation micro-Doppler are simulated to verify the correctness of theoretic micro鄄Doppler formulas, and some important conclusions are given.